JP2008307000A - Travel type seedling transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a travel type seedling transplanter in which a seedling-planting mechanism 10 for planting seedlings in a field is disposed in a travel machine frame 3, and a seedling-transferring and supplying mechanism 11 formed so that a plurality of seedling-receiving cylinders 16 used for each receiving a stock of seedlings, respectively, and connected in a row-like form may pass through the position of the seedling-planting mechanism 10 along a guide rail 17 formed in a closed loop on the plan view are disposed, and which can avoid the enlargement and weight increase of the travel type seedling transplanter, when the number of the seedling-receiving cylinders is increased. <P>SOLUTION: In the guide rail 17, both the ends of the first lateral rail portion 17a extended to cross the position of the seedling-planting mechanism are continuously connected to both the ends of the second lateral rail portion 17b extended to cross a place shifted from the seedling-planting mechanism to the front portion or rear portion of the travel machine frame via mutually three-dimensionally crossing intermediate rail portions 17c, 17d to totally form an 8-figure shape in the longitudinal direction on the flat view. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a traveling seedling transplanting machine in which seedlings such as onions are planted in a field.

Conventionally, this type of traveling seedling transplanting machine is, for example, as described in Patent Documents 1 and 2 as the prior art, a traveling machine body that travels with a pair of left and right traveling wheels, and seedlings in a field. In addition to providing a seedling planting mechanism for planting the seedlings, the seedlings are placed along a guide rail in which a plurality of seedling canisters into which seedlings are to be placed are connected in a line in a closed loop in plan view. A seedling transport and supply mechanism configured to circulate and move so as to pass through the place of the planting mechanism is provided, and an operator who walks or moves with the traveling machine body or gets on the traveling machine body, When supplied to each seedling tube in the seedling transfer supply mechanism, this seedling is moved to the seedling planting mechanism while being put in each seedling tube, and supplied to the seedling planting mechanism. Planting in the field with seedling planting mechanism Unishi to have.
JP 2006-149281 A Japanese Patent Laid-Open No. 2007-80

  When this kind of seedling transplanting machine is provided with a plurality of seedling planting mechanisms arranged side by side in a multi-row planting structure, the seedling transporting and feeding mechanism also promptly sends seedlings to the plurality of seedling planting mechanisms. In order to achieve this, the number of seedling cylinders must be increased as much as possible, and the length of the plurality of seedling cylinders connected in a row should be reduced as much as possible. By making it longer, it must be constructed so that the seedling supply to each seedling canister can be performed by many workers.

  Therefore, in the conventional seedling transplanting machine, as described in Patent Document 1 or 2, the seedling transporting and feeding mechanism has an elliptical shape that is long in the front-rear direction with respect to the traveling direction on both the left and right sides in the traveling direction. It is configured to be provided in the form of a closed loop.

  However, providing the seedling transport and supply mechanism in the form of an elliptical closed loop with a long front and rear direction on both the left and right sides of the traveling body can increase the number of each seedling storage cylinder in the both seedling transport and supply mechanism, Although an operator can supply seedlings into each seedling cylinder while walking with the traveling machine body or in a state of getting on the traveling machine body, the overall width including the both seedling transfer and supply mechanism is Not only does it increase, but the length also increases, resulting in a significant increase in weight and a significant increase in size.

  It is a technical object of the present invention to provide a traveling seedling transplanter that solves this problem.

In order to achieve this technical problem, claim 1
“A traveling plant that travels with a pair of left and right traveling wheels is provided with a seedling planting mechanism that allows seedlings to be planted in the field, and a plurality of seedling cylinders for storing one seedling are connected in a row. In a seedling transplanting machine provided with a seedling transfer supply mechanism configured to circulate and move so as to pass through the location of the seedling planting mechanism along a guide rail configured in a closed loop in a plan view of each seedling container,
A guide rail in the seedling transfer and supply mechanism,
The traveling machine body travels at both ends of the first traverse rail portion extending so as to cross the traveling direction of the traveling machine body at the location of the seedling planting mechanism, and at a position shifted from the seedling planting mechanism to the front part or the rear part of the traveling machine body. Connected between both ends of the second traverse rail part extending across the direction through an intermediate rail part that intersects with each other in a continuous manner, and as a whole, a figure of 8 in the front-rear direction in plan view Of closed loop. "
It is characterized by that.

Claim 2
“In the description of claim 1, the first traverse rail portion and the second traverse rail portion are U-shaped.”
It is characterized by that.

Claim 3
“In the description of claim 1 or 2, a seat on which an operator rides is provided in a portion adjacent to the second traverse rail portion.”
It is characterized by that.

  According to the configuration described in claim 1, a large number of seedling cylinders connected in a row in the seedling transporting and feeding mechanism are circulated and moved along a closed loop having an eight shape in the front-rear direction as a whole. As a result, the number of seedling canisters connected in a row in this single seedling transport and supply mechanism is set to two seedlings as in the past. It can be increased to a level comparable to that of the transfer supply mechanism, and the supply of one seedling to each of the seedling canisters can be performed while the worker walks with the traveling aircraft or on the traveling aircraft. Since it can be done easily in a boarded state, by arranging a plurality of the seedling planting mechanisms side by side, it is possible to reliably avoid a significant increase in weight and a large increase in the case of multi-row planting. it can

  In addition, according to the configuration described in claim 2, the number of seedling cylinders connected in a row can be further increased by the amount that the first traverse rail portion and the second traverse rail portion are configured in a U-shape. Therefore, the above-mentioned effect can be promoted.

  Furthermore, according to the configuration described in claim 3, the seedling is supplied to each seedling cylinder by an operator at the second traverse rail portion while the operator is on the traveling machine body. Because it can, it has the advantage of high workability.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  The seedling transplanting machine 1 shown in these figures moves onion seedlings in the width direction of the cocoon 2 while traveling forward in the direction of arrow A along the longitudinal direction of the cocoon 2 while straddling the cocoon 2 in the field. A plurality of planting strips are planted at regular intervals along the traveling direction.

  The onion seedling transplanting machine 1 includes a traveling machine body 3 and a pair of left and right crawler bodies 4a and 4b that travel while supporting the traveling machine body 3 on both the left and right sides, as will be described later.

  A substantially central portion of the traveling body 3 is provided with a mission case 6 that receives power from an engine 5 described later, and the engine 5 is mounted on an engine stand 7 that projects forward from the mission case 6. On the other hand, a steering handle 9 is provided at the rear end of the frame 8 extending rearward from the mission case 6.

  A plurality of seedling planting mechanisms 10, which will be described in detail later, are provided at the rear end portion of the transmission case 3 in the mission case 6 side by side at an appropriate strip interval P in the width direction of the rod 2. A seedling transfer and supply mechanism 11 to be described in detail later is provided in a portion of the traveling machine body 3 above the mission case 6.

  Each of the seedling planting mechanisms 10 includes a planting body 12 that reciprocates vertically between the ridges 2 in the field, as is well known in the above-mentioned Patent Documents 1 and 2, and the like. Is a hollow approximately inverted conical shape, and is divided into front and rear or left and right, and when the planted body 12 is in the raised position, it is closed and the seedling from the seedling transporting and feeding mechanism 11 is received inside. When the planting body 12 is moved downward, the pointed portion at the lower end of the planted body 12 pierces the upper surface 2a of the heel 2, opens in this state, and then returns to the original raised position and closes in the opened state. In this configuration, seedlings are planted on the cocoon 2.

  The seedling transfer and supply mechanism 11 includes an endless chain 15 wound between two sprockets 13 and 14, and the endless chain 15. A plurality of vertical seedling cylinders 16 provided at appropriate pitch intervals, and each seedling cylinder 16 connected in a row with the endless chain 15 is configured as a closed loop in a plan view (FIG. 2). The structure is such that each seedling cylinder 16 circulates intermittently along the rail 17 at a pitch interval of each seedling cylinder 16, and each seedling cylinder 16 is supplied (supplied) by a worker with one seedling. , After moving to the place directly above the planted body 12 in each seedling planting mechanism 10 along the guide rail 17, the shutter (not shown) at the bottom thereof is opened, so that one seedling in the inside can be Each seedling planting It has a configuration that darken to supply the planting body 12 in the structure 10.

  In the case of the present embodiment, the guide rail 17 includes a first traverse rail portion 17a that is disposed horizontally above the seedling planting mechanism 9 in the horizontal direction with respect to the running direction and is U-shaped, And a second traverse rail portion 17b arranged in a horizontal direction with respect to the traveling direction at a higher front portion and having a U-shape, both ends of the first traverse rail portion 17a, and the second traverse rail By connecting the two ends of the portion 17b so as to be continuous with the intermediate rail portions 17c and 17d that three-dimensionally intersect with each other, as a whole, in the plan view (FIG. 2), in the front-rear direction with respect to the traveling direction. It is configured in an 8-shaped closed loop.

  Note that the second traverse rail portion 17b may be arranged behind the first traverse rail portion 17a in the travel direction of the traveling machine body 3.

  Further, the traveling machine body 3 is provided with a roller-type backfilling body 18 that backfills a portion of the top surface 2a of the basket 2 where seedlings have been planted by the seedling planting mechanism 10. It is provided for every 10 rear locations.

  A pair of left and right crawler bodies 4a and 4b supporting the left and right sides of the traveling machine body 3 are a track frame 19 extending in the front-rear direction of the traveling machine body 3, and an idler attached to the front end of the track frame 19 via an idler shaft 20a. A pulley 20, a drive pulley 21 attached to the upper rear end of the track frame 19 via a drive shaft 21a, an idler pulley 22 attached to the lower rear end of the track frame 19 via an idler shaft 22a, and the track A plurality of idler pulleys 23 provided on the lower surface of the frame 19, and an endless belt 24 wound around the pulleys 20, 21, 22 and 23 in a substantially triangular shape in a side view.

  On the other hand, a pair of front and rear link bodies 25 and 26 having the same length are disposed on both the left and right sides of the traveling machine body 3 so as to extend downward. A base end of the link body 25 is pivotally attached to a lateral member 27 extending laterally from the engine base 7, and a lower end of the front link body 25 is pivotally pivotally attached to the front end of the track frame 19, while the rear portion The crawler bodies 4a, 4b are pivotally attached to the mission case 6 at the base end of the link body 26 and the lower end of the rear link body 26 to the drive shaft 21a at the rear end of the track frame 19, respectively. Is configured to freely move up and down while maintaining a parallel posture, and either one of the pair of front and rear link bodies 25 and 26 is provided on the traveling machine body 3. The traveling machine body is rotated up and down by a lifting hydraulic cylinder (not shown), and the crawler bodies 4a and 4b are moved up and down all at once through the traveling machine body 3. 3 is configured to move up and down with respect to the flange 2.

  In this case, the lifting hydraulic cylinder is operated by a roller-type height sensor 28 provided on the front side of the seedling planting mechanism 10 in the traveling machine body 3 so as to contact the upper surface 2a of the basket 2. Thus, the height from the upper surface 2a of the heel 2 in the traveling machine body 3, that is, the planting depth of the seedling is configured to be kept substantially constant.

  The rear link body 26 of the pair of front and rear link bodies 25 and 26 in the crawler bodies 4a and 4b is formed as a hollow body, for transmitting power from the transmission case 7 to the drive pulley 21 therein. A chain (not shown) is provided, and the endless belt 24 in both the crawler bodies 4a and 4b is rotated, so that the traveling machine body 3 moves forward or backward.

  Of the pair of left and right crawler bodies 4a and 4b on the left and right sides of the traveling machine body 3, one crawler body 4a positioned on the right side in the forward direction is close to the traveling machine body 3 in a plan view (FIG. 2). In other words, the traveling machine body 3 is offset so as to be close to one crawler body 4a located on the right side in a plan view (FIG. 2), but the other crawler body 4b located on the left side is As shown by a two-dot chain line in FIG. 2, by moving left and right with respect to the traveling machine body 3, the tread L between the two crawler bodies 4 a and 4 b is adjusted to the lateral width of the saddle 2, and the both crawler bodies. 4 is configured so that it can be arbitrarily changed so that it travels across the saddle 2.

  Specifically, the tread L is changed by connecting the pivot shafts 29 and 30 with respect to the traveling machine body 3 at the base ends of the front and rear link bodies 25 and 26 with respect to the other crawler body 4b, the lateral member 27 and the transmission case. 6, the other crawler body 4b is moved to the left and right with respect to the traveling machine body 3 by being slidably supported in the axial direction of the pivot shafts 29 and 30, and at a predetermined tread position. Needless to say, the tread can be fixed so that it cannot be changed.

  Further, power transmission from the transmission case 6 to the drive pulley 21 in the other crawler body 4b is performed by an extendable drive shaft (not shown) inserted into the pivot shaft 30 and the hollow rear link body 26. This is done through a chain (not shown) provided inside.

  In addition, a seat 31 on which one of the crawler bodies 4a and 4b is placed is placed on the upper part of both the crawler bodies 4a and 4b, and the second traverse rail among the guide rails 17 in the seedling transfer supply mechanism 11. The seat 31 is disposed in a portion adjacent to the portion 17b, and is configured to be attached to the track frame 19 of the crawler bodies 4a and 4b via a column 32.

  The tread L is changed by moving the crawler body 4a located on the right side instead of moving the crawler body 4b located on the left side of the pair of left and right crawler bodies 4a and 4b with respect to the traveling machine body 3. The left and right crawler bodies 4a and 4b may be moved to the left and right with respect to the traveling machine body 3 in the same configuration as described above. It goes without saying that the traveling machine body 3 is provided with a preliminary seedling stage 33 for placing seedlings on a portion close to the seedling transport and supply mechanism 11.

  In this configuration, the seedling planting mechanism 10 and the seedling transfer supply mechanism 11 are driven while the traveling machine body 3 travels forward.

  While walking with the traveling machine body 3 or riding on the seat 31, the operator puts the seedlings on the preliminary seedling stage 33 on the second traverse rail portion 17 b of the guide rail 17, And / or, in the location of each intermediate rail part 17c, 17d, one stock is supplied into each seedling container 16 in the seedling transfer supply mechanism 11.

  Then, after each seedling cylinder 16 in the seedling transporting and supplying mechanism 11 moves to the position just above the planting body 12 in each seedling planting mechanism 10 along the first traverse rail portion 17a in the guide rail 17, By opening the shutter at the bottom, one seedling in the inside is dropped and supplied into the planting body 12 in each seedling planting mechanism 10.

  Next, the planting body 12 in each seedling planting mechanism 10 moves downward, and the sharp part at the lower end of the planting mechanism pierces the upper surface 2a of the cocoon 2 and opens in this state, so that the seedlings can be planted on the cocoon 2 The portion of the upper surface 2a of the cocoon 2 where the seedlings are planted is backfilled by the backfilling body 18.

  The traveling machine body 3 is supported by crawler bodies 4a and 4b on both the left and right sides thereof, and both the crawler bodies 4a and 4b are grounded in surface contact with the field, so that the ground contact area is a conventional wheel. Therefore, it is possible to reduce the penetration to soft fields, to stabilize the seedling planting posture and to stabilize the seedling planting depth, and to increase the contact area, Since the running slip in a soft field can be reliably reduced, stabilization of seedling planting can be achieved reliably.

  In addition, the crawler bodies 4a and 4b are configured to move up and down in a parallel posture by a pair of front and rear link bodies 25 and 26, so that the traveling machine body 3 moves up and down, that is, the seedling. As the planting depth is adjusted, it is possible to reliably prevent the stabilization of the seedling planting posture.

  Further, since the steering handle 9 for the traveling machine body 3 extends rearward from the rear ends of the crawler bodies 4a and 4b, by pushing down the steering handle 9, the traveling machine body 3 has a front portion thereof. When tilting backward and downward so as to float from the field, the crawler bodies 4a and 4b are also tilted backward and downward so that the front part of the crawler body 4a and 4b floats from the field. On the other hand, the swivel operation can be easily performed, while the front part of both the crawler bodies is lifted, so that it is easy to cross the ridge or the ridge on the field.

It is a side view which shows the seedling transplanting machine by embodiment in this invention. It is a top view of FIG. It is a top view of the state which removed the seedling transfer supply mechanism in FIG. FIG. 4 is a rear view taken along the line IV-IV in FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seedling transplanter 2 ３ 3 Traveling machine body 4a, 4b Crawler body 19 Track frame of crawler body 20, 22, 23 Crawler body idler pulley 21 Crawler body drive pulley 24 Endless belt of crawler body 5 Engine 6 Mission case 9 Steering handle DESCRIPTION OF SYMBOLS 10 Seedling planting mechanism 12 Planted body 11 Seedling transfer supply mechanism 15 Endless chain 16 Seedling tube 17 Loop guide rail 17a First traverse rail part 17b Second traverse rail part 17c, 17d Intermediate rail part 18 Backfill body 25, 26 Link Body 31 Seat 33 Spare seedling stand

Claims (3)

A traveling plant that travels with a pair of left and right traveling wheels is provided with a seedling planting mechanism that allows seedlings to be planted in the field. In a seedling transplanting machine provided with a seedling transfer and supply mechanism configured to circulate and move so as to pass through the location of the seedling planting mechanism along a guide rail configured in a closed loop in a plan view of each seedling container,
A guide rail in the seedling transfer and supply mechanism,
The traveling machine body travels at both ends of the first traverse rail portion extending so as to cross the traveling direction of the traveling machine body at the location of the seedling planting mechanism, and at a position shifted from the seedling planting mechanism to the front part or the rear part of the traveling machine body. Connected between both ends of the second traverse rail part extending across the direction through an intermediate rail part that intersects with each other in a continuous manner, and as a whole, a figure of 8 in the front-rear direction in plan view Configured in a closed loop of
A traveling seedling transplanter characterized by that.   2. The traveling seedling transplanter according to claim 1, wherein the first traverse rail portion and the second traverse rail portion are U-shaped.   3. The traveling seedling transplanter according to claim 1 or 2, wherein a seat on which an operator gets is provided in a portion adjacent to the second traverse rail portion.

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